European Journal of Operational Research
European Journal of Operational Research > 2017 > 258 > 1 > 193-206
European Journal of Operational Research > 2017 > 260 > 2 > 751-766
European Journal of Operational Research > 2017 > 261 > 2 > 460-474
European Journal of Operational Research > 2017 > 263 > 2 > 719-732